diff --git a/app/controllers/api/v1/sites_controller.rb b/app/controllers/api/v1/sites_controller.rb
index 995a6ab6..5fc9ac46 100644
--- a/app/controllers/api/v1/sites_controller.rb
+++ b/app/controllers/api/v1/sites_controller.rb
@@ -14,7 +14,7 @@ module Api
 
       # Lista de nombres de dominios a emitir certificados
       def index
-        render json: alternative_names.concat(api_names).concat(www_names)
+        render json: sites_names.concat(alternative_names).concat(api_names).concat(www_names)
       end
 
       private
@@ -37,6 +37,15 @@ module Api
         name.end_with?(SUBDOMAIN) && name.split('.').count == (PARTS + 1)
       end
 
+      # Nombres de los sitios
+      def sites_names
+        Site.all.order(:name).pluck(:name).map do |name|
+          canonicalize name
+        end.reject do |name|
+          subdomain? name
+        end
+      end
+
       # Dominios alternativos
       #
       # @return [Array<String>]